I did a quick check of some of the stores I've purchased matcha from in the past (O-cha, Ippodo, and Hibiki-an) and this is more expensive per gram than the highest grades at all three of those sites. I don't doubt that this is good, but it does seem unlikely to me that it's better than everything sold by all of those companies.

If you go down to the "抹茶" section, look for "碧翠", and you will see the price in YEN.

Personally, I wouldn't be buying it for USD59 dollars for 20grams. I'd try to get it through the above website, or I'd go and buy an Uji matcha from elsewhere, as others have suggested. Furthermore, unless you are a tea ceremony instructor or practitioner with deep pockets, I wouldn't go for this one.